Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Patent
1990-04-26
1992-06-16
Knable, Geoffrey L.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
156152, 156156, 273167H, B29C 4514
Patent
active
051223244
ABSTRACT:
A method of making a hollow golf club head that includes forming a core that has a thin wall about a cavity; filling liquid into the core cavity; forming the club head body about the core by injection molding; and removing liquid from the core cavity.
REFERENCES:
patent: 4314964 (1982-02-01), Ferrary
patent: 4575447 (1986-03-01), Hariguchi
patent: 4624460 (1986-11-01), Murase et al.
patent: 4811949 (1989-03-01), Kobayashi
Haefliger William W.
Kingstone Golf Club Company, Ltd.
Knable Geoffrey L.
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